Colter attachment



(No Model.)

J. H. MANN.

I GOLTBR ATTACHMENT. N0.'269,436. Patented De0.19, 1882.

any, a. 0 .\\\\\\\Y WITNESSES INVENTOR Jflfm-w/r/ i B V TORNEY.

NITED STATES PATENT, FFICE.

Jon-N H. MANN, OF GRAFTON, TEXAS.

COLTER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 269,436, dated December 19, 1882, Application filed June 6, 1882. (No model.)

To all whom tt may concern:

Be it known that I, JOHN H. MANN, of Grafton, in the county of Wise and State of-Texas, have invented a new and Improved Plow Attachment,of which thefollowing is a full, clear, and exact-description.

The invention consists of slicing colter or knife attachments to the mold-board, the object of which is to slit or out the furrow-slice into narrow strips at the same time that it is turned up by the mold-board, all as hereinafter more fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a perspective view'of a plow with my improved colter attachments applied to it. Fig. 2 is a detail section of the plow, taken on line .2 w of Fig. 1, showing one method of attaching the furrow-slicing cutters. Fig. 3 is a plan view of a shank used in another method of attaching the furrow-slicing cutters. Fig. 4. is an edge view of the shank shown in Fig. 3, together with a side view of a cutter attached to it; and. Fig. 5 is a section of the cutter of Fig. 4 on the line y y.

A represents the colter, which according to this invention is attached directly to the front or point of the mold-board B, and similarly extended down along the share G, instead. of being attached by a shank to the beam 1) and locatedin advauceot'the mold-board and share, the object being to incline the colter more than in the other arrangement, for enabling it to have greater shear cutting action on the sod,

whereby it will work easier; and, instead ofextending up to the beam, it is extended back and attached to the upright E below the beam, the edge being continued in about the same inclination as below, except near the upper end it is preferred to curve it upward, as at F,

by which it cuts and discharges the weeds and roots of the surface of the ground and prevents them from clogging in the angle above as much as they would if the inclination were uniform to the top.

The colter is attached at the lower end by means of a little spur, a, projecting from the back or bottom edge a little above the point and entering a socket in the edge of the share, and the upper end is secured by bolts G to the upright E.

In order to slit the furrow-slice into narrow strips for the better disintegration of the sod, one or more slicing-cutters, I, is or are attached to the mold-board, with cutting-edges set, as indicated, suitably for the furrow-slice to be forced against them and be cutinto strips as it passes over the mold-board. For this purpose the cutter I is attached to a shank. J, and the shank attached to the plow at the line of the junction of the mold-board and share 0 by a bolt, L', which may either bind the clamp fast to the side of the mold-board through a slot, M, in the clamp, or the bolt may be adjusted so that the shank may be free to swing on the bolt, as indicated by the dotted line N, Fig. 1, the cutter being free to take the position that the furrow-slice causes it to assume.

The cutter I will be attached to the clamp by a dovetail stud, 0, which enters through notch 1? into slot Q, of the clamp and becomes fast by shifting along said slot beyond the notch to where the edges ofthe clamp are shaped correspondingly with the head, as indicated by the dot-ted lines, and suitably to fasten the head. By another arrangement the cutter I may be attached by securing tlieshank J at the top of the mold-board by a clamp, T, and the bolt L, as represented in Fig. 2, the

clamp being reversed on the mold-board and the cutter being reversed in the shank. In either case the cutter can be shifted along from one position to another, as may be required, the shank being in the first case shifted from one to the other of the holes S for the bolt L, and in the second case shifted along the top edge, or come down the side edge of the mold-board, if desired.

The shank J will consist of a thin flat bar of steel, which, when bolted fast tot-he moldboard, will spring to suit the form of the moldboard, and it will be so beveled at the ends and edges as not to obstruct the passage of the furrow-slice along the mold-board. The position of the shank will be such that the furrow-slice will nearly pass lengthwise along ihe combination, with the mold-board hav- 10 the shank. ing holes S, of the slotted shanks J, nut-bolt It will be seen that the shank J, being re- L, and the clamp T, as shown and described. versible as above described, serves for the con- T 5 116(tl01l of the cutters I in both of the arrange- I JOHN MANL ments shown. Witnesses:

Having thus described my inventiomwhat I WV. H. BULLOCK, claim as new, and desire to secure by Letters i J. B. FORD, Patent, isl S. S. 00131:. 

